agenttesla | 2255e8a54808ce7bf44bc4c8128a9b516b3e7bbd2bf041bcab8d7f5561178267

Bypass User Account Control

T1088

Disabling Security Tools

Modify Registry

Processes:

IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe

Windows security bypass 2 TTPs 2 IoCs

Disabling Security Tools

Modify Registry

Processes:

IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe = "0"	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe

Windows security modification 2 TTPs 3 IoCs

Disabling Security Tools

Modify Registry

Processes:

IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe = "0"	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

Processes:

IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A7F03247D56C4702909A34D4C840AB15 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe\""	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

System Information Discovery

T1082

Processes:

IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe

description pid process target process

PID 1780 set thread context of 232 1780 IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe CasPol.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1988 232 WerFault.exe CasPol.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exeCasPol.exe

pid process

692 powershell.exe
692 powershell.exe
232 CasPol.exe
232 CasPol.exe

description	pid	process	target process
PID 1780 set thread context of 232	1780	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe	CasPol.exe

pid	pid_target	process	target process
1988	232	WerFault.exe	CasPol.exe

pid	process
692	powershell.exe
692	powershell.exe
232	CasPol.exe
232	CasPol.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exepowershell.exeCasPol.exe

description	pid	process
Token: SeDebugPrivilege	1780	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe
Token: SeDebugPrivilege	692	powershell.exe
Token: SeDebugPrivilege	232	CasPol.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe

description	pid	process	target process
PID 1780 wrote to memory of 692	1780	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe	powershell.exe
PID 1780 wrote to memory of 692	1780	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe	powershell.exe
PID 1780 wrote to memory of 232	1780	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe	CasPol.exe
PID 1780 wrote to memory of 232	1780	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe	CasPol.exe
PID 1780 wrote to memory of 232	1780	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe	CasPol.exe
PID 1780 wrote to memory of 232	1780	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe	CasPol.exe
PID 1780 wrote to memory of 232	1780	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe	CasPol.exe
PID 1780 wrote to memory of 232	1780	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe	CasPol.exe
PID 1780 wrote to memory of 232	1780	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe	CasPol.exe
PID 1780 wrote to memory of 232	1780	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe	CasPol.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

Processes:

IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe

C:\Users\Admin\AppData\Local\Temp\IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe
"C:\Users\Admin\AppData\Local\Temp\IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe"
1⤵
- UAC bypass
- Windows security bypass
- Checks computer location settings
- Windows security modification
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1780

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\IlXopUgIznv0S8TIEoqbUWs_e70r8EG8q41-VWEXgmc.exe" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:692

C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 232 -s 1124
3⤵
- Program crash
PID:1988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 232 -ip 232
1⤵
PID:4468

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

3

Modify Registry

5

Credential Access

Discovery

Query Registry